1A Low Dropout Positive Regulator

AP1122

This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of

this product. No rights under any patent accompany the sale of the product.

Rev.1.0 Oct 21, 2004

1/10

Features

- 1.3V maximum dropout at full load current

- Fixed 1.2V+ 2% output voltage

- Fast transient response

- Output current limiting

- Built-in thermal shutdown

- Good noise rejection

- Pb-Free Packages: SOT223, TO263, TO252,

TO220, SOT89

Applications

- PC peripheral

- Communication

General Description

AP1122 is a low dropout positive fixed-mode

regulator with minimum of 1A output current

capability. The product is specifically designed to

provide well-regulated supply for low voltage IC

applications such as high-speed bus termination

and low current 1.2V logic supply. AP1122 is also

well suited for other applications such as VGA

cards. AP1122 is guaranteed to have lower than

1.3V dropout at full load current making it ideal to

provide well-regulated outputs of 1.2 output voltage

with 2.5V input voltage supply.

Ordering Information

AP1122 X X

Low Dropout Regulator

Package

E : SOT223-3L

K : TO263-3L

D : TO252-3L

T : TO220-3L

Y : SOT89-3L

Packing

Blank : Tube

A

: Taping

Typical Circuit

C2

100uF

2.5V

1.2V/1A

Tab is Vout

Vin

Vout

GND

C1

100uF